ringleader

As a letter s

is the letter s with a.

As a noun ringleader is

a leader of a group of people, especially an unofficial group.

Ringleader is a related term of ruler.

As nouns the difference between ringleader and ruler

is that ringleader is a leader of a group of people, especially an unofficial group while ruler is a (usually rigid), flat, rectangular measuring or drawing device with graduations in units of measurement; a rule; a straightedge with markings; a measure.

As nouns the difference between ringmaster and ringleader

is that ringmaster is the person who manages the performers in a circus ring while ringleader is a leader of a group of people, especially an unofficial group.

As a verb ringmaster

is to act as ringmaster.

Ringleader is a related term of kingpin.

As nouns the difference between ringleader and kingpin

is that ringleader is a leader of a group of people, especially an unofficial group while kingpin is (motorized vehicles) the axis around which steered wheels pivot; a bolt that holds the axis in place—a kingbolt.

Commander is a related term of ringleader.

As nouns the difference between commander and ringleader

is that commander is one who exercises control and direction of a military or naval organization while ringleader is a leader of a group of people, especially an unofficial group.

As nouns the difference between director and ringleader

is that director is one who directs; the person in charge of managing a department or directorate (e.g., director of engineering), project, or production (as in a show or film, e.g., film director) while ringleader is a leader of a group of people, especially an unofficial group.

As nouns the difference between chairman and ringleader

is that chairman is a person (implied male) presiding over a meeting while ringleader is a leader of a group of people, especially an unofficial group.

As nouns the difference between ringleader and overlord

is that ringleader is a leader of a group of people, especially an unofficial group while overlord is a ruler of other rulers.

As nouns the difference between chief and ringleader

is that chief is (leader of group etc)A leader or head of a group of people, organisation, etc while ringleader is a leader of a group of people, especially an unofficial group.

As an adjective chief

is primary; principal.

Supervisor is a related term of ringleader.

As nouns the difference between supervisor and ringleader

is that supervisor is (management) a person with the official task of overseeing the work of a person or group while ringleader is a leader of a group of people, especially an unofficial group.